The Roosters, who are expected to welcome dual international Sonny Bill Williams next season, are now on the lookout for a new coach.

Roosters chairman Nick Politis paid tribute to Smith's efforts at the club since joining from Newcastle in 2010, when he led the team to the grand final in his first season in charge.

"One of Brian's greatest strengths is developing young talent and he wholeheartedly embraced our strategic plan in relation to developing talented young players and he leaves the club in an extremely strong position in this area," Politis said.